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Array Solutions AS-SAL-12 Mark II User Manual

8 direction receiving loops antenna system
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Model AS-SAL-12/20/30 - Mark II
8 Direction Receiving Loops Antenna System
Manufactured and marketed under United States Patent No. 8,350,776 and additional patent pending.
Introduction
The Array Solutions Shared Apex Loop™ Array (AS-SAL-12 Mark II, AS-SAL-20
Mark II, and AS-SAL-30 – Mark II) is an improved version of the new type of
receiving antenna that delivers exceptional directivity in a compact package and is
useable over a wide range of frequencies without need for adjustment. This array opens
the door to a new class of compact, high performance, wideband receiving antennas
developed for both amateur and professional users.
In 2009, Mark Bauman (KB7GF) developed a working model of the array to improve
his listening experience in a suburban neighborhood in southeast Washington State.
From testing, he found that the array provided exceptional bandwidth in a compact size
Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018
Array Solutions
2611 North Belt Line Road
Suite # 109
Sunnyvale, TX 75182 USA
TEL 214-954-7140
FAX 214-954-7142
E-MAIL sales@arraysolutions.com
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Summary of Contents for Array Solutions AS-SAL-12 Mark II

  • Page 1 In 2009, Mark Bauman (KB7GF) developed a working model of the array to improve his listening experience in a suburban neighborhood in southeast Washington State. From testing, he found that the array provided exceptional bandwidth in a compact size Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018...
  • Page 2 SAL antennas with bigger loops that would favor very low frequencies (VLF) and the benefit of the structural improvement that makes the antenna easy to install even by of one person. Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018...
  • Page 3 Ferrite couplers are located along the base of each loop at a specific distance from the mast and connected to balanced feed lines that bring the signals to a switching unit Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018...
  • Page 4 The AS-SAL-12 Mark II should provide a directional pattern up to 28 MHz. The AS- SAL-20 Mark II should provide a directional pattern up to 14 MHz, and the AS-SAL-30 Mark II up to 7 MHz.
  • Page 5 7 ft (2.15 m) RG-6 coaxial cable delay line (with F connectors attached) Control Switch Combiner/Pre-amp 15v Power supply Suggested cutting lengths may vary depending on site's topography. Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018...
  • Page 6 11 ft (3.35 m) RG-6 coaxial cable delay line with F connectors attached Control Switch Combiner/Pre-amp 15v Power supply Suggested cutting lengths may vary depending on site's topography. Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018...
  • Page 7 21.75 ft (6.55 m) RG-6 delay line (with F connectors attached) Control Switch Combiner/Pre-amp 15v Power supply Suggested cutting lengths may vary depending on site's topography. Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018...

  • Page 8: Installation

    Shared Apex Loop™ array is somewhat tolerant to the presence of both metal and non-metal objects positioned near the loops. However, numeric modeling shows that there are limits to this tolerance. Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018...
  • Page 9 Simulations show that optimal height is ¼ W.L. at a given frequency. As an example of an AS-SAL-12 Mark II that has good directivity from 300 kHz to 28 MHz, it is located with the edge of the array located 50 feet (15.24 m) from a house, 90 feet (27.43 m) from overhead power lines, 30 feet (9.14 m) from ground mounted 36 foot...
  • Page 10 This way, the couplers will be oriented with the red wire towards the outer corner of the loops. Refer to the drawing and the following picture below: Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018 10...
  • Page 11 Detail of couplers connections and orientation. For B&W printouts, note the wires marked “red”. The other wires are black. Positive sign, “+” is red. Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018...
  • Page 12 The clamp should be over the wires and not on any part of the solder Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018...
  • Page 13 Refer to the picture to see how it should look when finished. It is highly recommended to protect these connections from the weather elements. Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018...

  • Page 14: Assembling The Mast

    It is time to assembly the mast with the corresponding number of aluminum sections depending on your model. Please refer to the drawing below: Mast layouts Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018...
  • Page 15 SAL-20 Mark II: Two sections (Including the top section with the shorter insert). SAL-30 Mark II: Four sections (Including the top section with the shorter insert). For a graphic reference, please see the different “Mast Layouts” above. Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018...
  • Page 16 Mast sections with its coupling inserts attached at their tops. Note the two tie down “D” rings for guy ropes at the top of the fourth section (SAL-30 Mark II only) and the shortest Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018...
  • Page 17 SAL-30 Mark II wire loop section and guy ropes layout. Wires are in red. Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018...
  • Page 18 SAL-12 Mark II wire loop section layout. View of the SAL-30 Mark-II antenna. The loops’ wires have been edited thicker for clarity. The thin lines are the guying ropes. Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018...
  • Page 19 A bowline knot works well. Also string on a rope tension device on each rope as shown in the picture. Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018...
  • Page 20 Triangle Tensioner: The one shown in the picture, when rotated counter clock wise will straighten the long branch of rope allowing the adjusting of the guy rope tension. Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018...

  • Page 21: Mast Installation

    (7.62 m), not an exact dimension that depends on the wire sag and tension applied to it. Just pull the wire and adjust the length while keeping it Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018 21...
  • Page 22 DC and the command pulses and 15 V DC are sent to the combiner using the transmission. This can damage the device, the Combiner and Controller of the SAL antenna. Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018 22...
  • Page 23 You can use wooden stakes or PVC pipes driven in the ground or any other non-conductive material structure to find your own solution for the TX lines routing. Transmission lines connections into the combiner terminals. Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018 23...
  • Page 24 Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018 24...
  • Page 25 Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018 25...

  • Page 26: Connecting The Controller

    Connect the receiver to the RCA connector at the back of the controller. o Connect the power, it is a 2.1 mm DC coaxial jack connector. Array Solutions has included a 1 A – 12 to 15 V DC RF-quiet power supply.

  • Page 27: Initial Checkout

    NOTE: If the signal strength levels are not the same, then the loops are not matched and directivity will be disappointing, especially on frequencies below 4 MHz! Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018 27...
  • Page 28 Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018 28...
  • Page 29 Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018 29...
  • Page 30 Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018 30...

  • Page 31: Operation

    In the AM broadcast band you should be able to detect two and Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018 31...
  • Page 32 RCA cable at the controller, the RG-6 cable connector, or the (-) side of the DC power connector. Enjoy your Array Solutions Shared Apex Loop™ System. Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018 32...

  • Page 33: Specifications

    AS-SAL-30: A square of 35.4 feet (10.79 m) on a side AS-SAL-20: A square of 24.75 feet (7.54 m) on a side AS-SAL-12: A square of 14.85 feet (4.53 m) on a side Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018 33...
  • Page 34 AS-SAL-30 Example Elevation Response Patterns AS-SAL-20 Example Elevation Response Patterns Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018 34...
  • Page 35 AS-SAL-12 Example Elevation Response Patterns Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018 35...
  • Page 36 To bypass the filter, remove the solder with a wick or a solder sucker, use minimal heat. Then, solder jumpers or make a trace with the solder from the center contacts to the NF (No Filter) contacts. HPF Bypassed. Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018 36...
  • Page 37 SAL antenna response with BCB High Pass Filter. The plots have been padded down because of the preamplifier gain, therefore, add 40 dB to the numbers. Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018 37...
  • Page 38 Appendix 2a : How to establish a perpendicular to a baseline. You can use this surveyor’s trick to establish the perpendicular lines where the loops of the SAL antenna are going to be positioned. Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018 38...
  • Page 39 Appendix 2B: How to establish a perpendicular line from a baseline Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018 39...

This manual is also suitable for:

As-sal-20 mark iiAs-sal-30 mark ii